HBO's Harry Potter Season 2 adds Bonnie Hill, Billy Barratt, and Lenny Rush for Chamber of Secrets. Get the full casting breakdown and release updates!
The Wizarding World continues to take shape for television as HBO officially announces three major casting additions for Season 2 of its upcoming Harry Potter television series. Billy Barratt (Invasion), Lenny Rush (Slow Horses), and Bonnie Hill are joining the ensemble as pre-production gets underway for the adaptation of J.K. Rowling's Harry Potter and the Chamber of Secrets.
The first season, which adapts Harry Potter and the Philosopher's Stone, has wrapped production and is scheduled to premiere on December 25, 2026, airing on HBO and streaming globally on HBO Max. Season 2 is set to begin filming this autumn at Leavesden Studios in the UK.
Key Information
- Series Title: Harry Potter (HBO Original Series)
- Showrunner & Lead Director: Francesca Gardiner (Showrunner / Executive Producer), Mark Mylod (Executive Producer / Director)
- Lead Trio Cast: Dominic McLaughlin (Harry Potter), Alastair Stout (Ron Weasley), Arabella Stanton (Hermione Granger)
- New Season 2 Additions: Billy Barratt (Tom Riddle), Lenny Rush (Dobby), Bonnie Hill (Ginny Weasley), Kit Harington (Gilderoy Lockhart)
- Adult Ensemble Cast: John Lithgow (Albus Dumbledore), Janet McTeer (Minerva McGonagall), Paapa Essiedu (Severus Snape), Nick Frost (Rubeus Hagrid)
- Production Companies: HBO in association with Brontë Film and TV and Warner Bros. Television
- Genre: Fantasy Drama, Family Adventure
- Official Social Accounts: Harry Potter Official Instagram, HBO Max Official X Account, Wizarding World Official Site
Who Is Playing Tom Riddle, Dobby, and Ginny Weasley in Season 2?
As the series shifts its narrative focus to the dark mysteries of the Chamber of Secrets, these key additions bring essential secondary characters to life:
- Billy Barratt as Tom Riddle: The International Emmy Award-winning actor takes on the role of the 16-year-old memory of Lord Voldemort preserved inside the enchanted diary. At 19 years old, Barratt is closer in age to the teenage Riddle described in the novels than Christian Coulson was when he played the role in the 2002 film adaptation at age 23.
- Lenny Rush as Dobby: The 17-year-old BAFTA winner will portray the loyal yet chaotic house-elf who tries to stop Harry from returning to Hogwarts. HBO has not confirmed whether Rush's performance will utilize motion capture, prosthetics, or voice performance with visual effects.
- Bonnie Hill as Ginny Weasley: Hill takes over the role of Ron's younger sister from Gracie Cochrane, who portrayed Ginny in Season 1 but departed due to unforeseen circumstances. Ginny steps into a central role in Season 2 as she falls under the influence of Tom Riddle's diary.
What Is the Timeline for HBO's Harry Potter Series?
HBO is taking a long-term approach to the franchise, planning a multi-season adaptation where each season corresponds to one of J.K. Rowling's seven original novels:
- Christmas 2026 Debut: Season 1 drops on Christmas Day, December 25, 2026, across HBO and HBO Max.
- Early Season 2 Renewal: HBO renewed the series for its second season well ahead of the premiere, allowing pre-production and casting to move seamlessly ahead of autumn filming.
- Star-Studded Faculty: The new additions join previously announced Season 2 cast member Kit Harington, who will step into the robes of the charming defense against the dark arts professor, Gilderoy Lockhart.